Case 590 Turbo, SL, SM Dipper Arm Parts

Standard dipper sticks, boom-to-dipper pins, bushings, washers, and snap rings for Case 590 Turbo, 590 Super L, and 590 Super M backhoe loaders, covering pivot bushings, cylinder pins, and hardware for the rear dipper arm assembly.

Fits Models At A Glance

• 590 Turbo: 590 Turbo
• 590 Super L Series: 590 Super L Series I, 590 Super L Series II
• 590 Super M Series: 590SM, 590SM Series 2, 590SM Series 3

Key Notes

• Application: Standard (non-extendable) dipper stick pin, bushing, and hardware service
• Pin Sizes: Snap rings and washers available for 1-1/2", 1-3/4", and 2" pins
• Bushings: Dipper-at-boom pivot, dipper cylinder, and end spacer bushings
• Condition: New replacement and used dipper sticks available

Why Choose Broken Tractor

• ✅ Correct pin and bushing sizing verified before shipping
• ✅ New and used dipper components under one roof
• ✅ Fast shipping from two US locations

Frequently Asked Questions

What size snap rings and washers are available for Case 590 Super L and 590 Super M dipper pins?

We carry snap rings and washers for 1-1/2", 1-3/4", and 2" pins used on the 590 Turbo, 590 Super L, and 590 Super M dipper arm assembly. Match the pin diameter on your machine to the correct part, since these sizes are not interchangeable. If you are unsure which size you need, confirm the part number with the parts team before ordering.

Which dipper stick fits a Case 590 Turbo versus a 590 Super L or 590 Super M?

Broken Tractor offers a used dipper stick for the 590 Turbo (SKU D144361-U) and a standard dipper stick for the 590 Super L and 590 Super M (SKU 302070A1-U). These are standard, non-extendable dipper sticks. The 590 Super L stick covers Series I and Series II, and the 590 Super M stick covers 590SM, 590SM Series 2, and 590SM Series 3.

What bushings are needed for the dipper at boom pivot on a Case 590 Super L?

We carry the dipper at boom pivot bushing (SKU D151059) for the 590 Turbo, 590 Super L, and 590 Super M, along with the dipper cylinder to dipper pin (SKU 175581A1) and dipper bushing (SKU D144161) for the 590 Super L and 590 Super M. There is also an end spacer bushing (SKU D141076) for the dipper stick. Replacing worn pivot bushings restores tight movement in the rear dipper arm.

Is there a greasable boom to dipper pin for the Case 590 Super L and 590 Super M?

Yes, we carry a greasable boom to dipper pin (SKU 175313A1) that fits the 590 Super L and 590 Super M. A greasable pin lets you keep the pivot lubricated to reduce wear and slop. Pair it with the correct bushing and snap ring for a complete pivot service.

How do I remove and install worn dipper arm bushings on a Case 590 backhoe?

Broken Tractor offers a steel bushing driver removal and installation tool (SKU BushingDriver) that works on backhoes and other heavy equipment for pressing bushings in and out. Using a proper driver helps seat new dipper bushings squarely without damaging the bore. Confirm the replacement bushing part number matches your machine before starting the job.